Okay, 1. Never leech.. well it takes longer than if you train yourself sometimes.

10-30 Skeletons or you can try till 40.. or move to Scarecrows once you hit 30.
Jesters 60-80 then door to Aliens till 110
If you can't get a door then go to Mp3 at around 80.

LHC = 110-160 Crockies (doesnt take that long if you don't slack)
Then Stronghold till about 178 when you can go to HoH.
Stay at HoH till 200 or you can try Red Leaf High instead but that requires NX.

Stronghold is slower than Crockies unless you're 165 or heavily funded. Don't give that advice without giving a disclaimer. On my Angelic Buster during a 2x exp event, I got level 172-178 when a level 161 Kaiser in my party got 161-163.